[341] | 1 | |
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| 2 | CCC $Header$ |
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| 3 | CCC TOP 1.0 , LOCEAN-IPSL (2005) |
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| 4 | C This software is governed by CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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| 5 | C --------------------------------------------------------------------------- |
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[186] | 6 | CDIR$ LIST |
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| 7 | SUBROUTINE p4zsink |
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| 8 | #if defined key_passivetrc && defined key_trc_pisces |
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| 9 | CCC--------------------------------------------------------------------- |
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| 10 | CCC |
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| 11 | CCC ROUTINE p4zsink : PISCES MODEL |
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| 12 | CCC ****************************** |
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| 13 | CCC |
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| 14 | CCC PURPOSE : |
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| 15 | CCC --------- |
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| 16 | CCC Compute vertical flux of particulate matter due to |
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| 17 | CCC gravitational sinking |
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| 18 | CCC |
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| 19 | CC INPUT : |
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| 20 | CC ----- |
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| 21 | CC common |
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| 22 | CC all the common defined in opa |
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| 23 | CC |
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| 24 | CC |
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| 25 | CC OUTPUT : : no |
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| 26 | CC ------ |
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| 27 | CC |
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| 28 | CC EXTERNAL : |
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| 29 | CC -------- |
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| 30 | CC p4zsink2 |
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| 31 | CC |
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| 32 | CC MODIFICATIONS: |
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| 33 | CC -------------- |
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| 34 | CC original : 2004 - O. Aumont |
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| 35 | CC---------------------------------------------------------------------- |
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| 36 | CC parameters and commons |
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| 37 | CC ====================== |
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| 38 | CDIR$ NOLIST |
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| 39 | USE oce_trc |
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| 40 | USE trp_trc |
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| 41 | USE sms |
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| 42 | IMPLICIT NONE |
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[339] | 43 | #include "domzgr_substitute.h90" |
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[186] | 44 | CDIR$ LIST |
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| 45 | CC---------------------------------------------------------------------- |
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| 46 | CC local declarations |
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| 47 | CC ================== |
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| 48 | INTEGER jksed, ji, jj, jk |
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| 49 | REAL xagg1,xagg2,xagg3,xagg4 |
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[339] | 50 | REAL zfact,zstep,wsmax |
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[186] | 51 | C |
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[339] | 52 | C Time step duration for biology |
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| 53 | C ------------------------------ |
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[186] | 54 | C |
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[339] | 55 | zstep=rfact2/rjjss |
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| 56 | C |
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[186] | 57 | C Sinking speeds of detritus is increased with depth as shown |
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| 58 | C by data and from the coagulation theory |
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| 59 | C ----------------------------------------------------------- |
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| 60 | C |
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[339] | 61 | jksed=10 |
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[186] | 62 | C |
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| 63 | DO jk=1,jpk-1 |
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| 64 | DO jj=1,jpj |
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| 65 | DO ji=1,jpi |
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[339] | 66 | zfact=max(0.,fsdepw(ji,jj,jk+1)-hmld(ji,jj))/2000. |
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| 67 | wsbio4(ji,jj,jk)=wsbio2+(200.-wsbio2)*zfact |
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[186] | 68 | END DO |
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| 69 | END DO |
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| 70 | END DO |
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| 71 | C |
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[339] | 72 | C LIMIT THE VALUES OF THE SINKING SPEEDS |
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| 73 | C TO AVOID NUMERICAL INSTABILITIES |
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| 74 | C |
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| 75 | wsbio3(:,:,:)=wsbio |
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| 76 | |
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| 77 | Do jk=1,jpk-1 |
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| 78 | DO jj=1,jpj |
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| 79 | DO ji=1,jpi |
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| 80 | wsmax=0.8*fse3t(ji,jj,jk)/zstep |
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| 81 | wsbio4(ji,jj,jk)=min(wsbio4(ji,jj,jk),wsmax) |
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| 82 | wsbio3(ji,jj,jk)=min(wsbio3(ji,jj,jk),wsmax) |
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| 83 | END DO |
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| 84 | END DO |
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| 85 | END DO |
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| 86 | |
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| 87 | wscal(:,:,:)=wsbio4(:,:,:) |
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| 88 | C |
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| 89 | C |
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[186] | 90 | C INITIALIZE TO ZERO ALL THE SINKING ARRAYS |
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| 91 | C ----------------------------------------- |
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| 92 | C |
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| 93 | sinking=0. |
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| 94 | sinking2=0. |
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| 95 | sinkcal=0. |
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| 96 | sinkfer=0. |
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| 97 | sinksil=0. |
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| 98 | sinkfer2=0. |
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| 99 | C |
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| 100 | C Compute the sedimentation term using p4zsink2 for all |
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| 101 | C the sinking particles |
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| 102 | C ----------------------------------------------------- |
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| 103 | C |
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[339] | 104 | CALL p4zsink2(wsbio3,sinking,jppoc) |
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| 105 | CALL p4zsink2(wsbio3,sinkfer,jpsfe) |
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| 106 | CALL p4zsink2(wsbio4,sinking2,jpgoc) |
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| 107 | CALL p4zsink2(wsbio4,sinkfer2,jpbfe) |
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| 108 | CALL p4zsink2(wsbio4,sinksil,jpdsi) |
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| 109 | CALL p4zsink2(wscal,sinkcal,jpcal) |
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[186] | 110 | C |
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| 111 | C Exchange between organic matter compartments due to |
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| 112 | C coagulation/disaggregation |
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| 113 | C --------------------------------------------------- |
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| 114 | C |
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[339] | 115 | DO jk = 1,jpkm1 |
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[186] | 116 | DO jj = 1,jpj |
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| 117 | DO ji = 1,jpi |
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| 118 | C |
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[339] | 119 | zfact=zstep*zdiss(ji,jj,jk) |
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| 120 | C |
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[186] | 121 | C Part I : Coagulation dependent on turbulence |
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| 122 | C ---------------------------------------------- |
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| 123 | C |
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[339] | 124 | xagg1=940.*zfact*trn(ji,jj,jk,jppoc)*trn(ji,jj,jk,jppoc) |
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[186] | 125 | # if defined key_off_degrad |
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| 126 | & *facvol(ji,jj,jk) |
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| 127 | # endif |
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| 128 | |
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[339] | 129 | xagg2=1.054E4*zfact*trn(ji,jj,jk,jppoc)*trn(ji,jj,jk,jpgoc) |
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[186] | 130 | # if defined key_off_degrad |
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| 131 | & *facvol(ji,jj,jk) |
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| 132 | # endif |
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| 133 | C |
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| 134 | C Aggregation of small into large particles |
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| 135 | C Part II : Differential settling |
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| 136 | C ---------------------------------------------- |
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| 137 | C |
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[339] | 138 | xagg3=0.66*zstep*trn(ji,jj,jk,jppoc)*trn(ji,jj,jk,jppoc) |
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[186] | 139 | # if defined key_off_degrad |
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| 140 | & *facvol(ji,jj,jk) |
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| 141 | # endif |
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| 142 | |
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[339] | 143 | xagg4=0.*zstep*trn(ji,jj,jk,jppoc)*trn(ji,jj,jk,jpgoc) |
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[186] | 144 | # if defined key_off_degrad |
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| 145 | & *facvol(ji,jj,jk) |
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| 146 | # endif |
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[339] | 147 | C |
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[186] | 148 | xagg(ji,jj,jk)=xagg1+xagg2+xagg3+xagg4 |
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| 149 | xaggfe(ji,jj,jk)=xagg(ji,jj,jk)*trn(ji,jj,jk,jpsfe)/ |
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| 150 | & (trn(ji,jj,jk,jppoc)+rtrn) |
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| 151 | C |
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| 152 | C Aggregation of DOC to small particles |
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| 153 | C -------------------------------------- |
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| 154 | C |
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[339] | 155 | xaggdoc(ji,jj,jk)=(80*trn(ji,jj,jk,jpdoc)+698. |
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| 156 | & *trn(ji,jj,jk,jppoc))*zfact*trn(ji,jj,jk,jpdoc) |
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[186] | 157 | # if defined key_off_degrad |
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| 158 | & *facvol(ji,jj,jk) |
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| 159 | # endif |
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| 160 | |
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[339] | 161 | xaggdoc2(ji,jj,jk)=1.05E4*zfact*trn(ji,jj,jk,jpgoc) |
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| 162 | & *trn(ji,jj,jk,jpdoc) |
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[186] | 163 | # if defined key_off_degrad |
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[339] | 164 | & *facvol(ji,jj,jk) |
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[186] | 165 | # endif |
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| 166 | C |
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| 167 | END DO |
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| 168 | END DO |
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| 169 | END DO |
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| 170 | |
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| 171 | # if defined key_trc_dia3d |
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| 172 | trc2d(:,:,5) = sinking(:,:,jksed+1)*1.e3*rfact2r |
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| 173 | trc2d(:,:,6) = sinking2(:,:,jksed+1)*1.e3*rfact2r |
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| 174 | trc2d(:,:,7) = sinkfer(:,:,jksed+1)*1.e3*rfact2r |
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| 175 | trc2d(:,:,8) = sinkfer2(:,:,jksed+1)*1.e3*rfact2r |
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| 176 | trc2d(:,:,9) = sinksil(:,:,jksed+1)*1.e3*rfact2r |
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| 177 | trc2d(:,:,10) = sinkcal(:,:,jksed+1)*1.e3*rfact2r |
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| 178 | # endif |
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| 179 | C |
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| 180 | #endif |
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| 181 | RETURN |
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| 182 | END |
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